A free fall in tax revenue is driving more state lawmakers to turn to broad-based tax increases in a bid to close widening budget gaps.

At least 10 states are considering some kind of major increase in sales or income taxes: Arizona, Connecticut, Delaware, Illinois, Massachusetts, Minnesota, New Jersey, Oregon, Washington and Wisconsin. California and New York lawmakers already have agreed on multibillion-dollar tax increases that went into effect earlier this year.

Fiscal experts say more states are likely to try to raise tax revenue in coming months, especially once they tally the latest shortfalls from April 15 income-tax filings, often the biggest single source of funds for the 43 states that levy them.

Recession-shocked state lawmakers are confronting a freefall in tax revenues below already bleak forecasts, forcing more states to turn to broad-based tax hikes to close budget gaps. See a state-by-state breakdown of falling revenue, budget shortfalls. [click on chart to enlarge]

Like the old competition to have the world's tallest building, New York can't resist having the nation's highest taxes. So after California raised its top income tax rate to 10.55% last month, Albany's politicians leapt into action to reclaim high-tax honors. Maybe C-Span can make this tax competition a new reality TV series; Carla Bruni, the first lady of France, could host.

They can invite politicians from the at least 10 other states that are also considering major tax hikes, including Oregon, Illinois, Wisconsin, Washington, Arizona and New Jersey. One explicit argument for the $787 billion "stimulus" bill was to help states avoid these tax increases that even Keynesians understand are contractionary. Instead, the state politicians are pocketing the federal cash to maintain spending, and raising taxes anyway. Just another spend-and-tax bait and switch.

In New York, Assembly Speaker (and de facto Governor) Sheldon Silver and other Democrats will impose a two percentage point "millionaire tax" on New Yorkers who earn more than $200,000 a year ($300,000 for couples). This will lift the top state tax rate to 8.97% and the New York City rate to 12.62%. Since capital gains and dividends are taxed as ordinary income, New York will impose the nation's highest taxes on investment income -- at a time when Wall Street is in jeopardy of losing its status as the world's financial capital.